Lock



Oct. 2, 1928.

R. B. BUZZAIRD LOCK Filed OCT.. 6, 1925 3 Sheets-Sheet 1 Cgi- Oct. 2,Y1928.

R. B. BUZZAIRD Filed oct. e, 1925 LOCK 3 Sheets-Sheet 2 fazmmlya Oct.2,1928. 1,685,982

' R. B. BUZZAIRD v LOCK Filed oct. 6, 1925 s sheetssheet 3 :EMSF: i.

@lahm/sega.

. periods of service.

Patented Oct. 2, 1928.

tesaesz nannten B.- BUZZ'AIBD, or MAPLEWOOD, NEwfJEnsEY.

' Lock.

Application led'octqber 6,' isaafsrial No. '60;914.

. This invention relates to'locks in general, and more particularly'tolocks of the type employed for-parcel lockers and the like.,

One'object of the invention isthe pro- 5 vision of a 'lock which can beopened only Vby' means of the key and is'protected against pilfering.

Anotherobject is the provision of a lock .of the .class moreparticularly referred to 1,0 whichcan be opened only in byme'ans of thekey. Y

' VAnotherohject is a lock of thetype referred Vto in which simple meansare provided Vfor a m1rately registering the actual Variousotlierobjects' will be appreciated from the'detailed description inconnection witlrthe accompanying drawings in which, Fig. 1 isa rear viewof a lock embodyingA the invention;

parallel to the face plate;

Fig. Sis a view similar to Fig.2 showing the elements of thc-operating.mechanism vin a sligl1tly'-cliffeient relative position; i

Fig. 4: isfa rear view of the device show` ing the elements of the`operating `mechanism in still another vrelativeposition;

Fig. 'is a rear `view showing'the relative position of the elementsvafter thev key vis withdrawn; f

Fig. 6 is a `vertical section substantially on line 64,6,y Fig. 1'; V

Fig. 7 is ah'orizontal section lon line7-7,' Fig. `1;

Fig.' 8 is a perspectiveview of 'a detail; Fig. 9 is a fragmentarysectional view showing a relative position'ofcertain elementsias theresult ofanattempt toretract the bolt in'an irregular manner.;

. Fig. 10V is a `persp portant detailv; Fig. 11Yis aj fragmentarysectional view of another detail; and 'Figs.`12, 13 and'14 areperspective views 'of various other detail mechanism.

' In-'the drawings, V10 represents the face plate onf the back ofwhich'alltheoperating mechanism 'is mountedgportions 1()a and 10bthereof formingfside flanges and 10c a topflange. `fV

"The operating mechanismincludes a key "cylinder 11, ahousingyltherefor. secured to the face plate vJoy means of'screws 1 4passing through lugs extending laterally a regular way Fig. 2 is a.vertical section .in a vplane Y `aliguiedelongated openings 22. Y

'substantially ective view of` anii- Y .serves asa pivotffor a plateQ.The plate from the housing. Adjacent the. rear surfaceof the face platethe housing-12 is cut away toprovide -room for. the 'pivotal movement ofa lever 1 5 vsecured uponthe` cylinder lland moving therewith. The'lever15 has an upwardly extending armla. engag-A ement ortica. i

ing the'flcolt 16 and a downwardlyextending.

armflb engaging anjlauxiliarybolt 17.

' Upon the back of theface -plate 10 is also i i secured a member 1 8definingacoin chute 1.9 at right angle tothe face plateythe'latterhaving a coinV slotf20 through which .the coins are entered into thecoin chute. The upper' portion ofthe coin chute is `slightly inclinedand Ahas one ofV its walls offset toV define an inclined c oin pocket214 for a pur.- pose to he more fully explained. In the walls of thecoin vchute between points near the upper end ofthe pocket 21and pointsa distance below thepocket 21 are providedA Uponthe backof the faceplate 10 is also pivotally Vmounted-ley means of a stud23a a f plate 2 8shown' in detail in Fig.13. This plate definesV 'a downwardly extendingarmi'.

Q4' offset out of' the plane ofthe' plate to l fb'ring'it intov'aligi'nnent' with" the `openings 22,*a vtoothQta and-Ia wing 25 actingas a shutter for the coin slot 20, the member 18 being cutaway behindthe faceplate 10 to make '-room for *the plate 23 and permit `angularmovement thereof.' Uponv plate 23 are provided' a stud 26; anda pin .27Vfor a Y purpose to be described-later on.

rlhe looltv16 (shownv fn detail in Figill) is mounted for slidingmovement means of 'a stud 29passinglthrough a vslot 30 inthe `holt, theend off-the bolt passing, as 'isl usual,l through .an opening in theedge iange A1 0n of the faceplate.

to?r

The Stud 291extendsgbynathe. bitaiid] 32 isspa'ced, from thefbolt 16bymeans of a Y spacer collarBS 1and is heldin position for free angularmovement upon the stud 2.9hy .means of ac ollar`y34, the arrangementbeing shown-in detail V.in Fig. 1 4, has a cam slot `Snatooth 36 and avdepending lug 3.7 defining a'cam surface iii-'conjunction with the'.

lower edge ofthe cam'slotkl The platefportion 1,2?" vof `the A.cylinderlcasingg152.

lportion a slot 43 through which extends a `stud44 which guides theplate 42and holds it against the plate'portion 12a. A second slot 45 inplate-42 co-operates with a p`inV 46 to guide the plate 42 in verticaldirection 'andllilnitthe movement 'thereo'f in both di- 1a we "rectionsit its top 'the plate 42 has asia sliding .surface .thebaok .of thecounter 47 "andjisheld thereto by-means of a bridge 48 whithjs vsecured.at one side: 'to thel side and hason its other sidel ,a fork#Sistraddl'ing theelementflS to hold it roper ,position relatively'ltothe' coin slot platef/Qis acted upon by a spring52 mounto`n -af pin 53on the plate ,portion 12a ndiigearing at its free end upon a stud 541011he plate 4.2 While the .otherl end of `the sping 'is 'held stationary byengagement 'with the plate portion 112. The vplate 42 thus 'tends tomovev toan upper position as V."liniiJed 1hy *thepin 46Min,s`lot V215,the upper g. .5, The plate '42 has .above its` middle spt nffiol'iha camslot 55 through which the stud f VThem-'m 15*L ofeiever 15 carries .atits up brit-he' like, for. co-operation With the .cam

'sniffaces o'f thelug '37 and the flower wallef cam slot A35 im plate.32;

` s The 1n vplate 23y isconnected by means of al link withthe crank larm15.7 df "the counter 12. 'v

'i 1 ne auxiiiary Abea 17 isheld yfor aidingmrw'elnenthy means of astrap17a and has yalso -bearin` Athe Side ange 10". A`

man,

img.

' Ulli,

als

adqnvendngulu i311amd fad' oentfto it a recess llphtogluhic ya Y i Pextends.

l vof the device ydescribed is as follows-: Y

Assume that the door ofa lockerl is open and a party is about ready toclose it. The ibolt l'iis'in retracted position and held in suchposition through the engagement of tooth 24 on plate 23 'with theshoulder 28a on ,the bolt 16. This engagement is maintained through 'theaction of spring 40 upon stud 26 .and the action vof ,spring BSaipon theVplate 32 on which vthe .pinflll Ais carried.

In Vthis position .the key `cannot .be 'with- The operation drawn .andcannot be turned tooperate the holt. vTo do this iti-is rnecessaryv todrop .a

[coin kthrough the .coin Lslot 20:intot`he .chute 19. y Figz 1 showsther AcoinY 64 Ijust `after .has been entered.. It `ifallsfupon .the.arm 24 Y i which 'is Vits ,uppermost ,positionfheing `a' 6; YTheLorilgeaSf preferably also has Y.a

part of plate23 which Ais vunder :the influence Y o'f springs 40 and'38. The .coin cannot Vremain in vertieal'positio'n, .due Y`to .they'sliv'ht inclination Aof .the wall of .the chut'eattliat point, ,hilt.falls ioverl on Vitsside against the Wallof lthe poket 2l and comes.torest .under 'the ltooth36 of plate 32 which .isinalignment vr withopenings `22. When :the akey ds rnow vturned to move kthe holt v.tolooking position, the @in .65 hears against. the .cam;surfaee of 'lufr37 of 'late 32l cansino ananular movey p b ff) ,ment thereof, wherebythe tooth 36. .forces the coin downwardly. This downward movementagainst {t'he `arm ,24. causes Aa :corresponding ,angular ,movement `ofpla-te 23 'the shoulder 128u of the :bolt .16 .thereby 1revleasing Vrthe'g bolt. 'Continued movement of .the key, now -causesthe-arni llztoproject `aa boa a lacking position. AS .ihegboapi Y moves outwardly thetooth 2isvioifcedwto ride up .the canrsunfaceQS thereby iigularly movingplate 23.aboi 1t.=itspivot. `This angular movement .causesarm QLtocont-,inne

the downward moveinentdnitiated by thev action of tooth36 upon the.'mediuinofgthe coin. Y y Y At "the end ,of the turning movement ,of

'thefk'ey .'to lock t'he holt :116 t'liefarxn v2,4 lhas almost clearedthe coin `chutebut still pnos jects into it suicient'ly to prevent theeoin 'from passing'by it. "'Dhe yboltfe'an be moved Ain and out to lockthe .doorv and to ope'nit respectively, without fdangerof 'l osing theservice of the coin, Thisfis .of importance "1s pract'ica'lvuse, becausepeople y'arejifn the habit of'closing the Adoorfonly -to yopen'ity'ag'aintota'ke,soifnething out'or to put some- `thing additional 1in.jSolongasthe keyfis g "not pulled out 'theyjcan safely y.operate the"bol't without flosing "the Vservice.

I Now,.when the bolt isffinally shot, the fkeyimay be drawn "llliis'vm'n'fement of Vthe Zkey is-translated into,movement of ,sev-

V24: Yite lear: the-coin' chute-allowing Lthe coin an opening 55lthrough which the studv 26` v passes. This openingV 55 is so'shaped asto vpermitthe stud 26 and'plate 23 to angular-ly move as described andhas a cam surface which is immediately below the stud 26 when the bolt`is'in vprojected position. V-As the key'isy withdrawn'and the plate 42moves upwardly, the camsurface of the opening moves the stud' 26laterally from the position lshown in Fig. 'f1 to the position shown .inFig. 5,`thereby imparting to the plate'23'a 'final angular'movementasthe continuation of the priorv angular move- *the bolt '16 by means fofJVV knife blades as: above suggested, the inward motion of theAbolt-16 is accompaniedby an outward movtion of the auxiliarybolt 17.`Thearrange- Avment is such that thebolt`16 may be retracted until itsend isf-lush with thek outside Asurface'ofthe side flange 10a withoutcaus ments described.: This final movement causes 'arm 24 to completely'clear the coin chute vand also to complete Van f' upward movement of-thecrank arm 57 of the counter, the initial movement thereof Vhaving beeneffected during the angular movements of plate 23 ycaused first by theaction of the coin and then'by the action of `cam surface 28 on bolt1,6. Thus the counter 47 does notregis- -ter the service until the keyis pulled from its normal position in the llock and retained as a checkby'the'user.` f-

' lWhen theY bolt is projected, it may be re? tracted by means of thevkey to just clear the door-*and thereby permit openingthereof'withoutretracting the bolt into its'final position inrwhich itwould require the use oft a com lfor further' service.

repeatedly 'use the llocker' without the v depositionof coins.4 H l ltmight also be possible to'v retract the bolt byl means of knife bladesentered into the narrow gap between the do'ori and `the -jambfand work@vthe blade into a position whereby the door could be opened. This' pospsibility would open the way for thieves to break into lockers.

In order to avoid illegitimate uses of Y the locker, such as mentioned,I have prof lil vided the auxiliary bolt 17 and the means 'which furtherservice can behad only by the deposit of another coin.

When the key 1s inserted to unlock the door andv then turned to retractthe bolt from opened.

By `s uch practice, it would therefore be possible to thep'osition shownin Figli, the arm-'15a turnsto the left, while the arm 15b vturns to theright, as seen from the back. AWhile..

Ythe bolt 16 is retracted, the auxiliary bolt 17 is projected into thejambrwhich has an opening for the reception of it. Just as the bolt 16'reachesy itsv final inward position, lthe pin 62, whichhas 'describedan arc about the axis of thekey cylinderas center, moves out of t-henotch 60 and the bolt 17 springs Avback under theaction of spring 58.Fig.. 9 vrepresents the relative position-ofthe parts as the keyapproaches its inalunlocking position. A' YVhen Vthis position isreaChedthe bolt16 is withdrawn to suchan extent r that its end'face is slightlywithin 'the outer surface of the side flange' 10a; The door thus cannotbe opened until the key Vhashbeen turned to the veryl end of itsunlockingmo-vement. However, v when thatpnal position' is" reached,'tl1eauxiliaryy bolt 17 is also in retracted position and the. door ymay beSuppose fthat a `thief manages to retract ing the release of theauxiliary-bolt 17 A pilferer cannot possibly moveltlie'bolt 16 farther4-backthanflush with the side-flange 10aV and isvthusunabletomove' itinto such a Vposition where the auxiliary bolt. 17 is released.V Sincethe two bolts .are positively by means of the key. Y

`- Figs.' 1Y and 2 show relationofparts when the lock :is unlocked.`Locking move- "ment ofthe `key now'l vcausesthe pin y62-to ride overYthe` sharp edge' defined by the cam surface 6,1 at the upper face 'ofthe'vbolt 17 and/over thecam surface. 611back-into ytjhenotch 60. iff

f .To makeitpossible thatthebolt '16 may vbe drawn an appreciabledistance inwardly of the outer surface of the side flange 10a, thelatter may be formed with inwardly deflected guide flanges 10d indicatedin Fig. 2. Y l 1 While locks of the type described are, generally, wellknown and` while I do not claim any novelty in regard to the broaderaspects thereof, the device contains various specific featuresrepresenting upon the prior art. l Although these im-V provements arespecific in nature, there is` considerable latitude in respect to theconstruction thereof. For this reason T do not i l intend to limitmyself to the exact construction shown and described, `it beingundermaterial improvements dood ghatthe leiter illustmtesmoroly what .l@wider @.fwoerned embodlmeint of the .inm'tiom v ldainv "l- Llm :a look;'the -oombumtion olf a l11121111 bult; mi auxiliary bolt, fkoyfaouatedmoc-h- Mlism im `oililfuulen,tly.operafblng the bolts innltivelyoppogitodimtions fand lIneens VWhweby auxiliary vboli: 1s.eugoinatical-ly *badkvnto' unlocking position vv'hen lle :Main Ibolt isim nul unloking posltion .18. Iain lool9fthe-comb1nat1on of mein M; `mi:auxiliary bolli, keynaounted mech- :mim .for conounrently foperatangthe `bolts i in, malanively opposite dmeotions and moons withVkeyeotuoted means for making. the bolt .inefeotivo nle lminholt'in in4urlloo'king'po.-

M 3.111 a Jock, `tibo oombimtionof a main #holte an .auxilximry holt,.keyotuated meol 1- Y operative i positively move the .mu-1n y boltandto concurrently move the auxiliary *boit in :a velatifvelyoppositodioeotogn in A#1C- the main bolt durmg 1th@ 'weiter pant ofthe,movement of the laire/r, mdmaohnmiam being omkstalucted :andai-- valued`bo make the movement of the, auxilary bult indemndent of MhemovementfofM ihemnim bd-wlionfthe latter. is in final unlocking position, mnd,'spring means. tendngto maintain :the auxiliary .bolt in unlocktu a.wnbimtionofa "l ghnxlt, um auxiliary boit, @kuymtuated:mochf'mgix'rwls 1. ibut xxrorm remand position no locking pos :timimnconrdannalhth he :movement of tho 40 mninfbakt frnmlocking position tonnloeking position, said means boing constructed munged bo become:ineffective when the y .lining o passage vfor-fthe reooption of-1.okey,

moin boltfha's reaohodl its 5.11251 .position duringfiiz unlockingmovement and means for .im ulalozlssing' when Said means hasVilhzcomaeinfectiousi,i M w Y 5. In a lock, the combination of a. Amaliny halt, an Tbohz; 'koyfantuntd mechiindnding' ginmsor operating fthewenn .move the auml-iuris' f .moin bolt and means .operativo to move the'auxilioly Vbolt from 4unlooloiang position to locking position in l oooordztnoe with .the movement of the main bolt; from :locking o unlockingposition, .and means tending to'f maintain .the euilxiliary` boltinu'nlocking position, the movement) .of th auxiliary bolt being.indopendent .of .theinziinbolt when the lutter is 4in na]-retraeizedposition and during .the movement thereof .from unlock*- ingposition to locking v:.pogiiaion. u 6. :1 10919, .the combinationwith akey Cylinder .and .o l.ooiirlioll.of means lying ilo the poth'of ondoperabloby longudlifil ,movementof the .key .in kthe key yiinderfto.operate the counter, i

w7- .In o. look., tho oom'biootionntfhig key -oylndor .and a iloounter,of meonszlying 1n .the

.path yof and oporoblo by :longitudinal mov@- menb-of v.the key in thekey-.yli-nder to operoto .the comiter, seid .means inolildng e amov-Aablelrlorxiloer influenoed -by fthe .movement .of

v.the -key and spring means itendinggo .inove the vsaid means againgst.the action of ,the key.

. v8, In .gp-kurk, thepombinaftion with .ilrke'f cylinder and `a-ounter, of'mean's vo peifgible by .longitudinal movement of the key .in.the key cylinder l.to operate the counter, n said monos including olmombor .-slidably mounted in plaine intersecting the path of leggi-,fao.budinol movement o o-folie key., meow tending,

-to maintain .tliegsaid member a .cgleinitie position and moans onqthekey and the said member fwhoroby. .tho glatter smovod :into-.or out ofthe .definite position when the .key is sin moved in longitudinalldiifetion,A

9f1o o 1ook,;o.koy QYI-indEoa-Gwotm and moons orootuoting So,id.coux1ton, ,Said

.means .including o. member lying inthe.. path of-end actuatedby'longitodinol movement .9.0 of oke inthe koyoylinder- 11). yi1 akoy-.oontl-ollsd look,A moons do' actuated by longltuflrinal movement ofo key in tho ysaid paSSge v A 5 [-Inftestimonv whereof, il ajiixfmyiattire. f RALEGH-B-BUZZARD-

